ASD Member Verification Stress Calculation

[asbernstein]

I am having trouble understanding the weak axis stress due to bending calculation. As I understand it, fbcz = (Mz*y)/(Iz)...Soo fbcz = [(0.0354 kip-ft)*12in*0.78125in)] / 0.2926 in^4, soo... fbcz = 1.134 kips, where as robot calculated it to be 0.1060 kips.

Please let me know if I am missing somethign obvious or if robots calulation is incorrect.  

[Rafal.Gaweda]

File please.

[Artur.Kosakowski]

IMHO you shouldn't run the check of stress for bi-directional bending for pipes but use the indicated option instead:

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.